Question

what is homologous series??

Answer 1

A Homologous Series is a group of organic chemical compounds, usually listed in order of increasing size, that have a similar structure (and hence also similar properties) and whose structures differ only by the number of CH2 units in the main carbon chain.

Answer 2

♧ A homologous series is a group of organic compounds having similar chemical properties.

In homologous series successive compounds are differ by CH2 group.

Characteristics of Homologous series :-

1) = The compounds of a homologous series shows similar chemical properties.

2) = The different in the molecular mass of any two homologous is 14u.

3) = We can represent all the members of a homologous series by the same general formula.

Examples of Homologous series :-

Methane = CH4
Ethane = C2H4
Propane = C3H6
Butane = C4H8
Pentane = C5H10
Hexane = C6H12

And so on...

□ The general formula of Homologous series of alkane = CnH2n+2

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